# Distill URL or HTML to Markdown with BM25 Budget Control

> Distill URL or HTML to Markdown with BM25 Budget Control is a paid API for AI agents from agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-23).

Fetches a URL or accepts raw HTML and converts it to compressed Markdown, structured JSON, a skeleton outline, or a BM25-focused token-budgeted excerpt.

## Facts

- Endpoint: POST https://agentdiet.dev/v1/docs-to-markdown?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: agentdiet.dev
- Website: https://agentdiet.dev
- Canonical page: https://www.zero.xyz/c/agentdiet-dev-distill-url-or-html-to-markdown-with-bm25-budget-control-4be02796
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uJXCXVjzimVd_a07zA16R

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agentdiet-dev-distill-url-or-html-to-markdown-with-bm25-budget-control-4be02796 -d '<json body>'
```

Example prompt: Can you fetch https://stripe.com/docs/payments and distill it into clean markdown, keeping it under 2000 tokens and focusing on the query 'payment intents setup'?

## When to prefer this

Choose this endpoint when you need to feed web content into an LLM but want to minimize token usage and cost. It is especially useful when you have a strict token budget and want BM25-ranked relevance filtering, or when you need structured JSON tables and metadata extracted from HTML rather than raw text. Prefer it over generic scrapers when ROI proof and compression metrics matter, or when you need multiple output modes (markdown, structured, skeleton, budget) from the same service.

## Known failure modes

- URL is unreachable or returns non-200 HTTP status — endpoint may return an error status
- HTML payload is empty or malformed — distillation may produce empty or low-quality output
- max_tokens set too low for meaningful content — may return a very truncated or empty excerpt
- BM25 query not relevant to page content — budget mode may return irrelevant fragments
- Payment not provided or insufficient — x402 payment required error returned
- Rate limit or timeout on fetching large pages — latency spike or failure

## How this service works

Distill a URL or raw HTML payload with BM25 budget control (Live x402 v2, IETF MPP & MCP endpoint at https://agentdiet.dev/v1/docs-to-markdown)

## Output

Returns a JSON object with a 'data' field containing the distilled output (Markdown text, structured JSON tables, skeleton outline, or BM25-focused excerpt depending on mode), plus an 'roi_proof' object showing raw_tokens, distilled_tokens, tokens_saved, compression_ratio_pct, roi_multiplier, and llm_cost_saved_usd. Also includes optional cache hit/miss status and billing details.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "minLength": 1,
   "description": "Target webpage URL to fetch and distill (or builtin://stripe-docs)"
  },
  "html": {
   "type": "string",
   "description": "Optional raw HTML string to distill directly without fetching"
  },
  "mode": {
   "enum": [
    "markdown",
    "structured",
    "skeleton",
    "budget"
   ],
   "type": "string",
   "default": "markdown",
   "description": "Distillation mode"
  },
  "query": {
   "type": "string",
   "description": "BM25 focus query when mode=budget"
  },
  "max_tokens": {
   "type": "integer",
   "minimum": 20,
   "description": "Strict token budget ceiling when mode=budget"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "status",
  "roi_proof",
  "data"
 ],
 "properties": {
  "data": {
   "type": "object",
   "description": "Distilled Markdown, structured JSON tables/metadata, skeleton outline, or BM25 budget excerpt."
  },
  "cache": {
   "type": "object",
   "properties": {
    "status": {
     "enum": [
      "HIT",
      "MISS"
     ],
     "type": "string"
    },
    "cache_key": {
     "type": "string"
    },
    "latency_ms": {
     "type": "number"
    }
   }
  },
  "status": {
   "type": "string",
   "description": "Execution status ('ok')"
  },
  "billing": {
   "type": "object",
   "properties": {
    "agent_id": {
     "type": "string"
    },
    "payment_method": {
     "type": "string"
    },
    "fee_charged_usd": {
     "type": "number"
    }
   }
  },
  "roi_proof": {
   "type": "object",
   "properties": {
    "raw_tokens": {
     "type": "integer"
    },
    "tokens_saved": {
     "type": "integer"
    },
    "roi_multiplier": {
     "type": "number"
    },
    "distilled_tokens": {
     "type": "integer"
    },
    "llm_cost_saved_usd": {
     "type": "number"
    },
    "compression_ratio_pct": {
     "type": "number"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentdiet-dev-distill-url-or-html-to-markdown-with-bm25-budget-control-4be02796/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdiet.dev](https://www.zero.xyz/host/agentdiet.dev/llms.txt)